May 2021 1 67 Report
A cluster of galaxies has a radius of about 4.6 million light-years (4.4×1022 ) and an intracluster medium wit?

Estimate the mass of the cluster. Give your answer in both kilograms and solar masses. Suppose the combined luminosity of all the stars in the cluster is 8.4×1012 .

B.What is the cluster's mass-to-light ratio?

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